Frontline police say new technology such as tablets, smartphones and the Internet is saving them considerable time.
A national rollout of 6500 iPhones and nearly 4000 iPads was completed last month.
Sergeant Kevin Stewart of Hastings said the devices turn the patrol car into a mobile office, meaning police don't have to drive back to the office to file reports.
He said routine checks, such as bail conditions or car registrations, can also be made without having to wait for the radio to become clear.
Police national headquarters said the project will save 0.5 million hours across the force per year, time that officers can spend in the community.